2 Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/lib/util.cc
22 * @brief Some utility functions and classes.
29 #include "audio_buffers.h"
30 #include "audio_processor.h"
31 #include "cinema_sound_processor.h"
32 #include "compose.hpp"
36 #include "dcp_content_type.h"
38 #include "exceptions.h"
39 #include "ffmpeg_image_proxy.h"
44 #include "job_manager.h"
47 #include "render_text.h"
48 #include "string_text.h"
49 #include "text_decoder.h"
51 #include "video_content.h"
52 #include <dcp/atmos_asset.h>
53 #include <dcp/decrypted_kdm.h>
54 #include <dcp/locale_convert.h>
55 #include <dcp/picture_asset.h>
56 #include <dcp/raw_convert.h>
57 #include <dcp/sound_asset.h>
58 #include <dcp/subtitle_asset.h>
60 #include <dcp/warnings.h>
61 LIBDCP_DISABLE_WARNINGS
63 #include <libavfilter/avfilter.h>
64 #include <libavformat/avformat.h>
65 #include <libavcodec/avcodec.h>
67 LIBDCP_ENABLE_WARNINGS
68 #include <curl/curl.h>
70 #include <pangomm/init.h>
71 #include <unicode/utypes.h>
72 #include <unicode/unistr.h>
73 #include <unicode/translit.h>
74 #include <boost/algorithm/string.hpp>
75 #include <boost/range/algorithm/replace_if.hpp>
76 #include <boost/thread.hpp>
77 #include <boost/filesystem.hpp>
78 LIBDCP_DISABLE_WARNINGS
79 #include <boost/locale.hpp>
80 LIBDCP_ENABLE_WARNINGS
81 #ifdef DCPOMATIC_WINDOWS
82 #include <boost/locale.hpp>
91 #ifdef DCPOMATIC_POSIX
104 using std::make_pair;
105 using std::make_shared;
110 using std::set_terminate;
111 using std::shared_ptr;
116 using boost::optional;
117 using boost::lexical_cast;
118 using boost::bad_lexical_cast;
119 using boost::scoped_array;
121 using dcp::raw_convert;
122 using dcp::locale_convert;
123 using namespace dcpomatic;
126 /** Path to our executable, required by the stacktrace stuff and filled
127 * in during App::onInit().
130 bool is_batch_converter = false;
131 static boost::thread::id ui_thread;
132 static boost::filesystem::path backtrace_file;
134 /** Convert some number of seconds to a string representation
135 * in hours, minutes and seconds.
138 * @return String of the form H:M:S (where H is hours, M
139 * is minutes and S is seconds).
142 seconds_to_hms (int s)
150 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
155 time_to_hmsf (DCPTime time, Frame rate)
157 Frame f = time.frames_round (rate);
166 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
170 /** @param s Number of seconds.
171 * @return String containing an approximate description of s (e.g. "about 2 hours")
174 seconds_to_approximate_hms (int s)
184 bool minutes = h < 6 && m > 0;
185 bool seconds = h == 0 && m < 10 && s > 0;
187 if (m > 30 && !minutes) {
188 /* round up the hours */
191 if (s > 30 && !seconds) {
192 /* round up the minutes */
202 /// TRANSLATORS: h here is an abbreviation for hours
203 ap += locale_convert<string>(h) + _("h");
205 if (minutes || seconds) {
211 /// TRANSLATORS: m here is an abbreviation for minutes
212 ap += locale_convert<string>(m) + _("m");
221 /// TRANSLATORS: s here is an abbreviation for seconds
222 ap += locale_convert<string>(s) + _("s");
229 seconds (struct timeval t)
231 return t.tv_sec + (double (t.tv_usec) / 1e6);
234 #ifdef DCPOMATIC_WINDOWS
236 /** Resolve symbol name and source location given the path to the executable */
238 addr2line (void const * const addr)
240 char addr2line_cmd[512] = { 0 };
241 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
242 return system(addr2line_cmd);
245 LIBDCP_DISABLE_WARNINGS
246 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
247 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
248 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
251 exception_handler(struct _EXCEPTION_POINTERS * info)
253 dcp::File f(backtrace_file, "w");
255 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
259 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
260 CONTEXT* context = info->ContextRecord;
261 SymInitialize (GetCurrentProcess (), 0, true);
263 STACKFRAME frame = { 0 };
265 /* setup initial stack frame */
267 frame.AddrPC.Offset = context->Rip;
268 frame.AddrStack.Offset = context->Rsp;
269 frame.AddrFrame.Offset = context->Rbp;
271 frame.AddrPC.Offset = context->Eip;
272 frame.AddrStack.Offset = context->Esp;
273 frame.AddrFrame.Offset = context->Ebp;
275 frame.AddrPC.Mode = AddrModeFlat;
276 frame.AddrStack.Mode = AddrModeFlat;
277 frame.AddrFrame.Mode = AddrModeFlat;
281 IMAGE_FILE_MACHINE_I386,
282 GetCurrentProcess (),
287 SymFunctionTableAccess,
292 addr2line((void *) frame.AddrPC.Offset);
296 addr2line ((void *) info->ContextRecord->Rip);
298 addr2line ((void *) info->ContextRecord->Eip);
302 return EXCEPTION_CONTINUE_SEARCH;
304 LIBDCP_ENABLE_WARNINGS
308 set_backtrace_file (boost::filesystem::path p)
313 /** This is called when there is an unhandled exception. Any
314 * backtrace in this function is useless on Windows as the stack has
315 * already been unwound from the throw; we have the gdb wrap hack to
322 static bool tried_throw = false;
323 // try once to re-throw currently active exception
329 catch (const std::exception &e) {
330 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
331 << e.what() << std::endl;
334 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
342 dcpomatic_setup_path_encoding ()
344 #ifdef DCPOMATIC_WINDOWS
345 /* Dark voodoo which, I think, gets boost::filesystem::path to
346 correctly convert UTF-8 strings to paths, and also paths
347 back to UTF-8 strings (on path::string()).
349 After this, constructing boost::filesystem::paths from strings
350 converts from UTF-8 to UTF-16 inside the path. Then
351 path::string().c_str() gives UTF-8 and
352 path::c_str() gives UTF-16.
354 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
355 so things are much simpler.
357 std::locale::global (boost::locale::generator().generate (""));
358 boost::filesystem::path::imbue (std::locale ());
362 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
363 * Must be called from the UI thread, if there is one.
368 #ifdef DCPOMATIC_WINDOWS
369 boost::filesystem::path p = g_get_user_config_dir ();
370 p /= "backtrace.txt";
371 set_backtrace_file (p);
372 SetUnhandledExceptionFilter(exception_handler);
375 #ifdef DCPOMATIC_HAVE_AVREGISTER
376 LIBDCP_DISABLE_WARNINGS
378 avfilter_register_all ();
379 LIBDCP_ENABLE_WARNINGS
383 /* Add our library directory to the libltdl search path so that
384 xmlsec can find xmlsec1-openssl.
386 auto lib = directory_containing_executable().parent_path();
388 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
391 set_terminate (terminate);
393 #ifdef DCPOMATIC_WINDOWS
394 putenv ("PANGOCAIRO_BACKEND=fontconfig");
395 putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
399 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
400 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
404 dcp::init (libdcp_resources_path());
406 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
407 /* Render something to fontconfig to create its cache */
408 list<StringText> subs;
409 dcp::SubtitleString ss(
410 optional<string>(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HAlign::CENTER, 0, dcp::VAlign::CENTER, dcp::Direction::LTR,
411 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
413 subs.push_back (StringText(ss, 0));
414 render_text (subs, list<shared_ptr<Font>>(), dcp::Size(640, 480), DCPTime(), 24);
417 Ratio::setup_ratios ();
418 PresetColourConversion::setup_colour_conversion_presets ();
419 DCPContentType::setup_dcp_content_types ();
420 Filter::setup_filters ();
421 CinemaSoundProcessor::setup_cinema_sound_processors ();
422 AudioProcessor::setup_audio_processors ();
424 curl_global_init (CURL_GLOBAL_ALL);
426 ui_thread = boost::this_thread::get_id ();
429 #ifdef DCPOMATIC_WINDOWS
430 boost::filesystem::path
434 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
435 boost::filesystem::path p (buffer);
436 p = p.parent_path ();
437 p = p.parent_path ();
444 boost::filesystem::path
447 return "DCP-o-matic 2.app/Contents/Resources";
452 dcpomatic_setup_gettext_i18n (string lang)
454 #ifdef DCPOMATIC_LINUX
458 if (!lang.empty ()) {
459 /* Override our environment language. Note that the caller must not
460 free the string passed into putenv().
462 string s = String::compose ("LANGUAGE=%1", lang);
463 putenv (strdup (s.c_str ()));
464 s = String::compose ("LANG=%1", lang);
465 putenv (strdup (s.c_str ()));
466 s = String::compose ("LC_ALL=%1", lang);
467 putenv (strdup (s.c_str ()));
470 setlocale (LC_ALL, "");
471 textdomain ("libdcpomatic2");
473 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
474 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
475 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
478 #ifdef DCPOMATIC_LINUX
479 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
483 /** Compute a digest of the first and last `size' bytes of a set of files. */
485 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
487 boost::scoped_array<char> buffer (new char[size]);
491 boost::uintmax_t to_do = size;
492 char* p = buffer.get ();
494 while (i < int64_t (files.size()) && to_do > 0) {
495 dcp::File f(files[i], "rb");
497 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
500 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
501 f.checked_read(p, this_time);
507 digester.add (buffer.get(), size - to_do);
512 i = files.size() - 1;
513 while (i >= 0 && to_do > 0) {
514 dcp::File f(files[i], "rb");
516 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
519 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
520 f.seek(-this_time, SEEK_END);
521 f.checked_read(p, this_time);
527 digester.add (buffer.get(), size - to_do);
529 return digester.get ();
534 simple_digest (vector<boost::filesystem::path> paths)
536 return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
540 /** Trip an assert if the caller is not in the UI thread */
544 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
548 audio_channel_name (int c)
550 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
552 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
553 /// enhancement channel (sub-woofer).
554 string const channels[] = {
561 _("Hearing impaired"),
562 _("Visually impaired"),
565 _("Left rear surround"),
566 _("Right rear surround"),
568 _("D-BOX secondary"),
577 short_audio_channel_name (int c)
579 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
581 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
582 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
583 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
584 /// primary channel and DBS is the D-BOX secondary channel.
585 string const channels[] = {
609 valid_image_file (boost::filesystem::path f)
611 if (boost::starts_with (f.leaf().string(), "._")) {
615 auto ext = f.extension().string();
616 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
618 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
619 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
620 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
621 ext == ".jpf" || ext == ".psd"
626 valid_sound_file (boost::filesystem::path f)
628 if (boost::starts_with (f.leaf().string(), "._")) {
632 auto ext = f.extension().string();
633 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
634 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
638 valid_j2k_file (boost::filesystem::path f)
640 auto ext = f.extension().string();
641 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
642 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
646 tidy_for_filename (string f)
648 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
653 fit_ratio_within (float ratio, dcp::Size full_frame)
655 if (ratio < full_frame.ratio ()) {
656 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
659 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
663 split_get_request (string url)
666 AWAITING_QUESTION_MARK,
669 } state = AWAITING_QUESTION_MARK;
671 map<string, string> r;
674 for (size_t i = 0; i < url.length(); ++i) {
676 case AWAITING_QUESTION_MARK:
691 r.insert (make_pair (k, v));
701 if (state == VALUE) {
702 r.insert (make_pair (k, v));
711 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
713 dcp::NameFormat::Map values;
715 values['r'] = raw_convert<string>(reel_index + 1);
716 values['n'] = raw_convert<string>(reel_count);
718 values['c'] = careful_string_filter(summary.get());
720 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension);
725 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
727 return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
732 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
734 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
739 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
741 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
746 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
748 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
753 relaxed_string_to_float (string s)
756 boost::algorithm::replace_all (s, ",", ".");
757 return lexical_cast<float> (s);
758 } catch (bad_lexical_cast &) {
759 boost::algorithm::replace_all (s, ".", ",");
760 return lexical_cast<float> (s);
765 careful_string_filter (string s)
767 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
768 There's no apparent list of what really is allowed, so this is a guess.
769 Safety first and all that.
772 /* First transliterate using libicu to try to remove accents in a "nice" way */
773 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
774 auto status = U_ZERO_ERROR;
775 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
776 transliterator->transliterate(transliterated);
778 /* Some things are missed by ICU's transliterator */
779 std::map<wchar_t, wchar_t> replacements = {
784 icu::UnicodeString transliterated_more;
785 for (int i = 0; i < transliterated.length(); ++i) {
786 auto replacement = replacements.find(transliterated[i]);
787 if (replacement != replacements.end()) {
788 transliterated_more += replacement->second;
790 transliterated_more += transliterated[i];
794 /* Then remove anything that's not in a very limited character set */
796 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
797 for (int i = 0; i < transliterated_more.length(); ++i) {
798 wchar_t c = transliterated_more[i];
799 if (allowed.find(c) != string::npos) {
804 return boost::locale::conv::utf_to_utf<char>(out);
807 /** @param mapped List of mapped audio channels from a Film.
808 * @param channels Total number of channels in the Film.
809 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
812 audio_channel_types (list<int> mapped, int channels)
817 for (auto i: mapped) {
819 /* This channel is mapped but is not included in the DCP */
823 switch (static_cast<dcp::Channel>(i)) {
824 case dcp::Channel::LFE:
827 case dcp::Channel::LEFT:
828 case dcp::Channel::RIGHT:
829 case dcp::Channel::CENTRE:
830 case dcp::Channel::LS:
831 case dcp::Channel::RS:
832 case dcp::Channel::BSL:
833 case dcp::Channel::BSR:
836 case dcp::Channel::HI:
837 case dcp::Channel::VI:
838 case dcp::Channel::MOTION_DATA:
839 case dcp::Channel::SYNC_SIGNAL:
840 case dcp::Channel::SIGN_LANGUAGE:
841 case dcp::Channel::CHANNEL_COUNT:
846 return make_pair (non_lfe, lfe);
849 shared_ptr<AudioBuffers>
850 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
852 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
853 mapped->make_silent ();
855 int to_do = min (map.input_channels(), input->channels());
857 for (int i = 0; i < to_do; ++i) {
858 for (int j = 0; j < mapped->channels(); ++j) {
859 if (map.get(i, j) > 0) {
860 mapped->accumulate_channel(
874 increment_eyes (Eyes e)
876 if (e == Eyes::LEFT) {
885 utf8_strlen (string s)
887 size_t const len = s.length ();
889 for (size_t i = 0; i < len; ++i) {
890 unsigned char c = s[i];
891 if ((c & 0xe0) == 0xc0) {
893 } else if ((c & 0xf0) == 0xe0) {
895 } else if ((c & 0xf8) == 0xf0) {
904 day_of_week_to_string (boost::gregorian::greg_weekday d)
906 switch (d.as_enum()) {
907 case boost::date_time::Sunday:
909 case boost::date_time::Monday:
911 case boost::date_time::Tuesday:
913 case boost::date_time::Wednesday:
914 return _("Wednesday");
915 case boost::date_time::Thursday:
916 return _("Thursday");
917 case boost::date_time::Friday:
919 case boost::date_time::Saturday:
920 return _("Saturday");
923 return d.as_long_string ();
926 /** @param size Size of picture that the subtitle will be overlaid onto */
928 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
930 /* XXX: this is rather inefficient; decoding the image just to get its size */
931 FFmpegImageProxy proxy (sub.png_image());
932 auto image = proxy.image(Image::Alignment::PADDED).image;
933 /* set up rect with height and width */
934 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
936 /* add in position */
938 switch (sub.h_align()) {
939 case dcp::HAlign::LEFT:
940 rect.x += sub.h_position();
942 case dcp::HAlign::CENTER:
943 rect.x += 0.5 + sub.h_position() - rect.width / 2;
945 case dcp::HAlign::RIGHT:
946 rect.x += 1 - sub.h_position() - rect.width;
950 switch (sub.v_align()) {
951 case dcp::VAlign::TOP:
952 rect.y += sub.v_position();
954 case dcp::VAlign::CENTER:
955 rect.y += 0.5 + sub.v_position() - rect.height / 2;
957 case dcp::VAlign::BOTTOM:
958 rect.y += 1 - sub.v_position() - rect.height;
962 decoder->emit_bitmap (period, image, rect);
966 show_jobs_on_console (bool progress)
972 dcpomatic_sleep_seconds (5);
974 auto jobs = JobManager::instance()->get();
976 if (!first && progress) {
977 for (size_t i = 0; i < jobs.size(); ++i) {
978 cout << "\033[1A\033[2K";
988 if (!i->sub_name().empty()) {
989 cout << "; " << i->sub_name();
993 if (i->progress ()) {
994 cout << i->status() << " \n";
996 cout << ": Running \n";
1000 if (!progress && i->finished_in_error()) {
1001 /* We won't see this error if we haven't been showing progress,
1004 cout << i->status() << "\n";
1007 if (i->finished_in_error()) {
1012 if (!JobManager::instance()->work_to_do()) {
1020 /** XXX: could use mmap? */
1022 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
1024 dcp::File f(from, "rb");
1026 throw OpenFileError (from, errno, OpenFileError::READ);
1028 dcp::File t(to, "wb");
1030 throw OpenFileError (to, errno, OpenFileError::WRITE);
1033 /* on the order of a second's worth of copying */
1034 boost::uintmax_t const chunk = 20 * 1024 * 1024;
1036 std::vector<uint8_t> buffer(chunk);
1038 boost::uintmax_t const total = boost::filesystem::file_size (from);
1039 boost::uintmax_t remaining = total;
1042 boost::uintmax_t this_time = min (chunk, remaining);
1043 size_t N = f.read(buffer.data(), 1, chunk);
1044 if (N < this_time) {
1045 throw ReadFileError (from, errno);
1048 N = t.write(buffer.data(), 1, this_time);
1049 if (N < this_time) {
1050 throw WriteFileError (to, errno);
1053 progress (1 - float(remaining) / total);
1054 remaining -= this_time;
1060 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
1062 /* Now scale it down if the display container is smaller than the film container */
1063 if (display_container != film_container) {
1064 float const scale = min (
1065 float (display_container.width) / film_container.width,
1066 float (display_container.height) / film_container.height
1069 s.width = lrintf (s.width * scale);
1070 s.height = lrintf (s.height * scale);
1071 s = quanta.round (s);
1079 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1082 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1083 } catch (dcp::KDMDecryptionError& e) {
1084 /* Try to flesh out the error a bit */
1085 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1086 bool on_chain = false;
1087 auto dc = Config::instance()->decryption_chain();
1088 for (auto i: dc->root_to_leaf()) {
1089 if (i.subject() == kdm_subject_name) {
1094 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1095 } else if (kdm_subject_name != dc->leaf().subject()) {
1096 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1104 boost::filesystem::path
1105 default_font_file ()
1107 boost::filesystem::path liberation_normal;
1109 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1110 if (!boost::filesystem::exists (liberation_normal)) {
1111 /* Hack for unit tests */
1112 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1114 } catch (boost::filesystem::filesystem_error& e) {
1118 if (!boost::filesystem::exists(liberation_normal)) {
1119 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1122 return liberation_normal;
1129 transform (s.begin(), s.end(), s.begin(), ::toupper);
1134 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1135 #define DCPOMATIC_DEBUG_THREADS 0
1137 #if DCPOMATIC_DEBUG_THREADS
1139 start_of_thread (string name)
1141 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1145 start_of_thread (string)